$ git clone -n https://gitee.com/opencloudos-stream/usermode.git /var/lib/mock/dist-ocs23-build-286018-27839/root/chroot_tmpdir/scmroot/usermode
Cloning into '/var/lib/mock/dist-ocs23-build-286018-27839/root/chroot_tmpdir/scmroot/usermode'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/usermode
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b7ba4d0 !1 Add usermode-gtk for beesu Merge pull request !1 from brucezhang/master